95) Which drawing best shows the molecular polarity of methylamine, CH3NH2, and the bond polarities
that make a major contribution to the overall molecular polarity?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
96) Which drawing best shows the direction of the dipole moment in H2C=CCl2?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
97) Which best indicates the direction of the dipole moment in formaldehyde, H2C=O?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
98) Which best indicates the direction of the dipole moment in acetone, (CH3)2C=O?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
99) Which drawing best represents hydrogen bonding?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
100) Which drawing below best represents hydrogen bonding methanol, CH3OH?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
101) Which drawing best represents hydrogen bonding in methylamine, CH3NH2?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
102) If figure (1) represents the vapor pressure of water at 25°C, which figure represents the vapor
pressure of water at 45°C?
A) figure (2)
B) figure (3)
C) figure (4)
103) If figure (1) represents the vapor pressure of water at 25°C in a 1 liter container, which figure
represents the vapor pressure of water at 25°C in a 2 liter container?
A) figure (2)
B) figure (3)
C) figure (4)
104) If figure (1) represents the vapor pressure of water at 25°C, which figure represents the vapor
pressure of ethanol, CH3CH2OH at 25°C?
A) figure (2)
B) figure (3)
C) figure (4)
105) If figure (1) represents the vapor pressure of diethyl ether, CH3CH2OCH2CH3, at 25°C, which
figure represents the vapor pressure of ethanol at 25°C?
A) figure (2)
B) figure (3)
C) figure (4)
106) If figure (1) represents the vapor pressure of water, at 25°C, which figure represents the vapor
pressure of mercury at 25°C?
A) figure (2)
B) figure (3)
C) figure (4)
The plots below represent vapor pressure vs. temperature curves for diethyl ether, ethanol, mercury, and
water, not necessarily in that order.
107) Based on the relative strengths of the intermolecular forces of attraction of each substance, which is
the most likely vapor pressure vs. temperature curve for diethyl ether?
A) curve (a)
B) curve (b)
C) curve (c)
D) curve (d)
108) Based on the relative strengths of the intermolecular forces of attraction of each substance, which is
the most likely vapor pressure vs. temperature curve for ethanol?
A) curve (a)
B) curve (b)
C) curve (c)
D) curve (d)
109) Based on the relative strengths of the intermolecular forces of attraction of each substance, which is
the most likely vapor pressure vs. temperature curve for mercury?
A) curve (a)
B) curve (b)
C) curve (c)
D) curve (d)
110) Based on the relative strengths of the intermolecular forces of attraction of each substance, which is
the most likely vapor pressure vs. temperature curve for water?
A) curve (a)
B) curve (b)
C) curve (c)
D) curve (d)
111) From the plot of vapor pressure as a function of temperature shown below, the normal boiling point
for tert-butyl alcohol is approximately
A) 0°C.
B) 40°C.
C) 85°C.
D) 100°C.
The picture shown below represents a two-dimensional lattice of atoms M and X.
112) Which of the areas designated A, B, and C are smallest repeating units, analogous to two-
dimensional unit cells?
A) only A
B) only B
C) only C
D) A, B, or C
113) What is the formula of the compound formed from M and X?
A) MX
B) MX2
C) MX3
D) MX4
114) Identify the packing in the figure shown below.
A) body-centered cubic
B) cubic closest packed (face-centered cubic)
C) hexagonal closest packed
D) simple cubic
115) Identify the packing in the figure shown below.
A) body-centered cubic
B) cubic closest packed (face-centered cubic)
C) hexagonal closest packed
D) simple cubic
116) Identify the packing in the figure shown below.
A) body-centered cubic
B) cubic closest packed (face-centered cubic)
C) hexagonal closest packed
D) simple cubic
117) Identify the packing in the figure shown below.
A) body-centered cubic
B) cubic closest packed (face-centered cubic)
C) hexagonal closest packed
D) simple cubic
A certain mineral crystallizes in the cubic unit cell shown below.
118) What kind of packing do the anions adopt?
A) body-centered cubic
B) cubic closest packed (face-centered cubic)
C) hexagonal closest packed
D) simple cubic
119) How many cations and how many anions are in the unit cell?
A) 4 cations and 4 anions
B) 4 cations and 8 anions
C) 4 cations and 14 anions
D) 8 cations and 4 anions
120) A certain mineral crystallizes in the cubic unit cell shown below. M represents the cations and A
represents the anions. What is the empirical formula of the mineral?
A) MA
B) MA2
C) M2A
D) M4A4
33
A certain mineral, MxM’yAz, crystallizes in the cubic unit cell shown below. M and M’ represent cations
and A represents the anions.
121) How many cations M are in the unit cell?
A) 1
B) 2
C) 4
D) 8
122) How many anions are in the unit cell?
A) 1
B) 2
C) 3
D) 6
123) What is the empirical formula of the mineral?
A) MM’A
B) MM’A3
C) M2M’A3
D) M8M’A6
124) If cation M has a 2+ charge and anion A has a 2- charge, what is the oxidation state of cation M’?
A) +1
B) +2
C) +3
D) +4